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<meta name="description" content="前言： swoole在phper中其实也没有火，之前简单的使用了下easyswoole，感觉上手确实和其他框架没有什么区别，但在直接使用swoole的时候，就感觉官方文档写得是真的像简化版字典一样，有个目录给人查询，然后简单解释意思、读音之类的。在各个后端语言布道者满地，社区文档资源层出不穷的现在，对比起来swoole确实让人感到了深深的贫瘠，无奈作为小白的我装进去了确实摸不清。就我个人感觉而言，">
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<meta property="og:description" content="前言： swoole在phper中其实也没有火，之前简单的使用了下easyswoole，感觉上手确实和其他框架没有什么区别，但在直接使用swoole的时候，就感觉官方文档写得是真的像简化版字典一样，有个目录给人查询，然后简单解释意思、读音之类的。在各个后端语言布道者满地，社区文档资源层出不穷的现在，对比起来swoole确实让人感到了深深的贫瘠，无奈作为小白的我装进去了确实摸不清。就我个人感觉而言，">
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<meta name="twitter:description" content="前言： swoole在phper中其实也没有火，之前简单的使用了下easyswoole，感觉上手确实和其他框架没有什么区别，但在直接使用swoole的时候，就感觉官方文档写得是真的像简化版字典一样，有个目录给人查询，然后简单解释意思、读音之类的。在各个后端语言布道者满地，社区文档资源层出不穷的现在，对比起来swoole确实让人感到了深深的贫瘠，无奈作为小白的我装进去了确实摸不清。就我个人感觉而言，">



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          <h1 class="post-title" itemprop="name headline">记swoole多进程任务体验 - PHP - 后端 - swoole</h1>
        

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        <p>前言： swoole在phper中其实也没有火，之前简单的使用了下easyswoole，感觉上手确实和其他框架没有什么区别，但在直接使用swoole的时候，就感觉官方文档写得是真的像简化版字典一样，有个目录给人查询，然后简单解释意思、读音之类的。<br>在各个后端语言布道者满地，社区文档资源层出不穷的现在，对比起来swoole确实让人感到了深深的贫瘠，无奈作为小白的我装进去了确实摸不清。就我个人感觉而言，相比phper学习swoole的话，我觉得选择社区更完善的其他后端语言会更好一些，毕竟不是人人都是大神，遇到的坑有时候是真的迈步过去。</p>
<p>PS：这篇文章其实是年初写的，一直丢在草稿箱里，现在才发觉了。</p>
<a id="more"></a>
<p>扯得有点多，先说下自己的任务描述吧：<br>需求是从上游公司一个游戏备份服务器中通过api接口轮询请求每个游戏ID的每日游戏信息，总计超过二十万个游戏ID，就是每天需要请求二十多万次接口，并且这个ID数量还在增长中。<br>其实方案是有很多的，比如直接用Linux的定时器来请求web应用，或者使用go、node等在多进程请求，因为公司是php技术栈，go和node等语言也没有实际开发过，所以就打算使用swoole了（其实我个人认为同样没有swoole、go、node项目经验的，即使是phper，还是使用node或者go比较好，毕竟生态社区摆在那儿）。</p>
<h6 id="使用swoole-process多进程"><a href="#使用swoole-process多进程" class="headerlink" title="使用swoole_process多进程"></a>使用swoole_process多进程</h6><p>ps：其实现在还不大清楚swoole_process创建子进程和swoole_server的task进程两种方式来实现多进程任务有多少区别</p>
<p>说到队列，市面上比较成熟，使用较多的是kafka、redis、rabbitmq等，我在看了swoole_process文档后，发现swoole的process也有消息队列功能，就打算使用此种方式。</p>
<p>简单说一下task模型，直接运行master_process,然后在其中for循环创建一定数量的子进程。<br>单独使用额外一个进程来分割数据库消息并监控队列长度，发现队列任务即将完成时再次进行添加任务到队列中</p>
<figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * swoole进程任务</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="class"><span class="keyword">class</span> <span class="title">TaskWorker</span></span></span><br><span class="line"><span class="class"></span>&#123;</span><br><span class="line">	<span class="comment">//进程配置</span></span><br><span class="line">	<span class="keyword">protected</span> $config = [];</span><br><span class="line">	</span><br><span class="line">	<span class="comment">//主进程pid</span></span><br><span class="line">    <span class="keyword">public</span> $mpid = <span class="number">0</span>;</span><br><span class="line"></span><br><span class="line">    <span class="comment">//子进程标识容器</span></span><br><span class="line">    <span class="keyword">public</span> $works = [];</span><br><span class="line">    </span><br><span class="line">    <span class="comment">//子进程数量</span></span><br><span class="line">    <span class="keyword">public</span> $workNum = <span class="number">1</span>;</span><br><span class="line"></span><br><span class="line">	<span class="comment">//进程重命名</span></span><br><span class="line">    <span class="keyword">private</span> $processName = <span class="string">"php-queue:%s"</span>;</span><br><span class="line"></span><br><span class="line">	<span class="comment">//生产者进程</span></span><br><span class="line">    <span class="keyword">public</span> $producer = <span class="keyword">null</span>;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">__construct</span><span class="params">($config)</span></span></span><br><span class="line"><span class="function">    </span>&#123;</span><br><span class="line">        <span class="keyword">$this</span>-&gt;config = $config;</span><br><span class="line">        <span class="keyword">isset</span>($config[<span class="string">'swoole'</span>][<span class="string">'workNum'</span>]) &amp;&amp; <span class="keyword">$this</span>-&gt;workNum = $config[<span class="string">'swoole'</span>][<span class="string">'workNum'</span>];</span><br><span class="line">        <span class="keyword">try</span> &#123;</span><br><span class="line">        	<span class="comment">//重命名主进程</span></span><br><span class="line">            swoole_set_process_name(sprintf(<span class="keyword">$this</span>-&gt;processName, <span class="string">'master'</span>));</span><br><span class="line">            <span class="keyword">$this</span>-&gt;mpid = posix_getpid();</span><br><span class="line">            </span><br><span class="line">            <span class="keyword">$this</span>-&gt;run();</span><br><span class="line">        &#125; <span class="keyword">catch</span> (\<span class="keyword">Exception</span> $e) &#123;</span><br><span class="line">            Logs::getInstance()-&gt;error($e-&gt;getMessage());</span><br><span class="line">            <span class="keyword">die</span>(<span class="string">'ALL ERROR: '</span> . $e-&gt;getMessage());</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">	<span class="comment">/**</span></span><br><span class="line"><span class="comment">     * 开始任务</span></span><br><span class="line"><span class="comment">     */</span></span><br><span class="line">    <span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">run</span><span class="params">()</span></span></span><br><span class="line"><span class="function">    </span>&#123;</span><br><span class="line">        <span class="comment">//创建生产者子进程</span></span><br><span class="line">        <span class="keyword">$this</span>-&gt;createProducerProcess();</span><br><span class="line"></span><br><span class="line">        <span class="comment">//创建消费者子进程，i从1开始，0被生产者占用</span></span><br><span class="line">        <span class="keyword">for</span> ($i = <span class="number">1</span>; $i &lt;= <span class="keyword">$this</span>-&gt;workNum; $i++) &#123;</span><br><span class="line">            <span class="keyword">$this</span>-&gt;newIndex = $i;</span><br><span class="line">            <span class="keyword">$this</span>-&gt;createConsumerProcess($i);</span><br><span class="line">        &#125;</span><br><span class="line">        </span><br><span class="line">        <span class="keyword">while</span>(<span class="number">1</span>) &#123;</span><br><span class="line">         <span class="keyword">if</span> (count(<span class="keyword">$this</span>-&gt;works)) &#123;</span><br><span class="line">             <span class="comment">//等待回收结束子进程</span></span><br><span class="line">             $ret = \swoole\process::wait();</span><br><span class="line">             <span class="keyword">if</span> ($ret) &#123;</span><br><span class="line">                Logs::getInstance()-&gt;log(<span class="string">"process die pid:"</span> . json_encode($ret));</span><br><span class="line">                <span class="comment">//从进程标识容器中移除结束进程</span></span><br><span class="line">                <span class="keyword">unset</span>(<span class="keyword">$this</span>-&gt;works[$ret[<span class="string">'pid'</span>]]);</span><br><span class="line">                <span class="keyword">if</span> (count(<span class="keyword">$this</span>-&gt;works) === <span class="number">0</span>) &#123;</span><br><span class="line">                    <span class="comment">//所有子进程都结束了，直接清空queue队列</span></span><br><span class="line">                    <span class="keyword">$this</span>-&gt;producer-&gt;freeQueue();</span><br><span class="line">                &#125;</span><br><span class="line">                <span class="comment">//todo if not empty queue list,reboot sub process;</span></span><br><span class="line">              &#125;</span><br><span class="line">              <span class="keyword">continue</span>;</span><br><span class="line">          &#125; <span class="keyword">else</span> &#123;</span><br><span class="line">              <span class="comment">//</span></span><br><span class="line">           &#125;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">    </span><br><span class="line">    <span class="comment">/**</span></span><br><span class="line"><span class="comment">     * 检查主进程状况</span></span><br><span class="line"><span class="comment">     * <span class="doctag">@param</span> $worker</span></span><br><span class="line"><span class="comment">     */</span></span><br><span class="line">    <span class="keyword">private</span> <span class="function"><span class="keyword">function</span> <span class="title">checkMasterPid</span><span class="params">(&amp;$worker)</span></span></span><br><span class="line"><span class="function">    </span>&#123;</span><br><span class="line">        <span class="keyword">if</span> (!\swoole\process::kill(<span class="keyword">$this</span>-&gt;mpid, <span class="number">0</span>)) &#123;</span><br><span class="line">            $worker-&gt;exit();</span><br><span class="line">            <span class="comment">// 这句提示,实际是看不到的.需要写到日志中</span></span><br><span class="line">            Logs::getInstance()-&gt;log(<span class="string">"Master process exited, I [&#123;$worker['pid']&#125;] also quit\n"</span>);</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">    </span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<p>这里说一下Process-&gt;useQueue，文档说是启用消息队列作为进程间通信，搭配的是Process-&gt;freeQueue来关闭队列，正常程序结束进程时确实可以搭配来删除队列，但我手动结束程序的时候（control+C）,直接关闭队列后再次重启程序，如文档说的一般队列不会被删除，问题是按照我的需求，就是有意识的手动关闭进程时，是希望抛弃队列中未完成的数据的，求助百度swoole如何捕捉control+c，无果……</p>
<p>再说一下process的queue这个东西，文档说单个消息长度受限于操作系统内核参数的限制，默认为8192，最大不超过65536，但我发现push进去的消息队列总字节（Process-&gt;statQueue查看queue_bytes）无法超过65536，不知道是我理解有误？</p>
<p>基于上述问题，我只能独立出一个子进程来作为生产者，将数据分割为多次push到队列中，时机为每次检查队列不足10条时，再次从数据库中取出数据<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment">* 生产进程</span></span><br><span class="line"><span class="comment">*/</span></span><br><span class="line"><span class="keyword">private</span> <span class="function"><span class="keyword">function</span> <span class="title">createProducerProcess</span><span class="params">()</span></span></span><br><span class="line"><span class="function"></span>&#123;</span><br><span class="line">    $self = <span class="keyword">$this</span>;</span><br><span class="line">    <span class="keyword">$this</span>-&gt;producer = <span class="keyword">new</span> \swoole_process(<span class="function"><span class="keyword">function</span> <span class="params">(\swoole_process $worker)</span> <span class="title">use</span> <span class="params">($self)</span> </span>&#123;</span><br><span class="line">        <span class="comment">//子进程命名</span></span><br><span class="line">        swoole_set_process_name(sprintf($self-&gt;processName, <span class="string">"producer1"</span>));</span><br><span class="line">        $pageSize = <span class="number">500</span>;</span><br><span class="line">        $pageNum = <span class="number">1</span>;</span><br><span class="line">        <span class="keyword">while</span> (<span class="number">1</span>) &#123;</span><br><span class="line">            <span class="comment">//检查父进程是否退出</span></span><br><span class="line">            $self-&gt;checkMasterPid($worker);</span><br><span class="line"></span><br><span class="line">            <span class="keyword">if</span> ($self-&gt;getQueueNum() &gt; <span class="number">10</span>) &#123;</span><br><span class="line">                <span class="comment">//消息队列中还有数据，不进行push操作，防止消息队列内存超出限制</span></span><br><span class="line">                sleep(<span class="number">1</span>);</span><br><span class="line">                <span class="keyword">continue</span>;</span><br><span class="line">            &#125;</span><br><span class="line">            $limit = ($pageNum &gt; <span class="number">0</span>) ? ($pageNum - <span class="number">1</span>) * $pageSize : <span class="number">0</span>;</span><br><span class="line">            $query = <span class="string">"SELECT id,area,game_userid FROM `game_user` LIMIT &#123;$limit&#125;, &#123;$pageSize&#125;"</span>;</span><br><span class="line">            <span class="keyword">if</span> ($pageNum &gt; <span class="number">1</span>) sleep(<span class="number">10</span>); <span class="comment">//已经做完一段了，休息一段时间</span></span><br><span class="line">            Logs::getInstance()-&gt;log(<span class="string">"before select data,now queue num:"</span> . $self-&gt;getQueueNum());</span><br><span class="line">            <span class="comment">//数据库中检索分页数据</span></span><br><span class="line">            $data = (<span class="keyword">new</span> Query())-&gt;query($query);</span><br><span class="line">            <span class="keyword">if</span> ($data === <span class="keyword">false</span>) &#123;</span><br><span class="line">                <span class="comment">// 已经没有多余的数据了 消息生产结束</span></span><br><span class="line">                Logs::getInstance()-&gt;log(<span class="string">"数据库中没有更多数据啦,product process die"</span>);</span><br><span class="line">                $worker-&gt;push(<span class="string">'exit'</span>);</span><br><span class="line">                <span class="comment">//退出进程，退出循环</span></span><br><span class="line">                $worker-&gt;exit(<span class="number">0</span>);</span><br><span class="line">                <span class="keyword">break</span>;</span><br><span class="line">            &#125;</span><br><span class="line">            <span class="comment">//注意： queue_bytes一次不能取太多数据到队列中</span></span><br><span class="line">            <span class="keyword">foreach</span> ($data <span class="keyword">as</span> $datum) &#123;</span><br><span class="line">                <span class="comment">//循环添加到消息队列中</span></span><br><span class="line">                $worker-&gt;push(json_encode($datum));</span><br><span class="line">                usleep(<span class="number">1000</span>);</span><br><span class="line">            &#125;</span><br><span class="line"></span><br><span class="line">            <span class="comment">//记录分 页数据</span></span><br><span class="line">            Logs::getInstance()-&gt;log(</span><br><span class="line">                <span class="string">"data_count:"</span> . count($data) .</span><br><span class="line">                <span class="string">" queue_num:"</span> . json_encode($self-&gt;producer-&gt;statQueue()) .</span><br><span class="line">                <span class="string">" page:"</span> . $pageNum .</span><br><span class="line">                <span class="string">" limit: "</span> . $limit</span><br><span class="line">            );</span><br><span class="line">            $pageNum++;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;, <span class="keyword">false</span>, <span class="keyword">false</span>, <span class="keyword">true</span>);</span><br><span class="line">    $customMsgKey = <span class="number">1</span>;</span><br><span class="line">    $mod = <span class="number">2</span> | \swoole_process::IPC_NOWAIT;<span class="comment">//这里设置消息队列为非阻塞模式</span></span><br><span class="line">    <span class="comment">//初始化前先清空内存残余消息队列</span></span><br><span class="line">    <span class="keyword">$this</span>-&gt;producer-&gt;useQueue($customMsgKey, $mod);</span><br><span class="line">    <span class="keyword">if</span> (<span class="keyword">$this</span>-&gt;getQueueNum() &gt; <span class="number">0</span>) &#123;</span><br><span class="line">        <span class="keyword">$this</span>-&gt;producer-&gt;freeQueue();</span><br><span class="line">        <span class="comment">//再次开启新的消息队列</span></span><br><span class="line">        <span class="keyword">$this</span>-&gt;producer-&gt;useQueue($customMsgKey, $mod);</span><br><span class="line">    &#125;</span><br><span class="line">    $pid = <span class="keyword">$this</span>-&gt;producer-&gt;start();</span><br><span class="line">    Logs::getInstance()-&gt;log(<span class="string">"product process start"</span>);</span><br><span class="line">    <span class="keyword">$this</span>-&gt;works[$pid] = <span class="keyword">$this</span>-&gt;producer;</span><br><span class="line">&#125;</span><br><span class="line">    </span><br><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment">* 获取当前队列数量，需在进程 useQueue后才可以调用</span></span><br><span class="line"><span class="comment">* <span class="doctag">@return</span> bool</span></span><br><span class="line"><span class="comment">*/</span></span><br><span class="line"><span class="keyword">private</span> <span class="function"><span class="keyword">function</span> <span class="title">getQueueNum</span><span class="params">()</span></span></span><br><span class="line"><span class="function"></span>&#123;</span><br><span class="line">    <span class="keyword">if</span> (<span class="keyword">$this</span>-&gt;producer) &#123;</span><br><span class="line">    	<span class="keyword">return</span> <span class="keyword">$this</span>-&gt;producer-&gt;statQueue()[<span class="string">'queue_num'</span>];</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">return</span> <span class="keyword">false</span>;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></p>
<figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br></pre></td><td class="code"><pre><span class="line">    <span class="comment">/**</span></span><br><span class="line"><span class="comment">     * 创建子进程，消费队列</span></span><br><span class="line"><span class="comment">     * <span class="doctag">@param</span> null $index</span></span><br><span class="line"><span class="comment">     * <span class="doctag">@return</span> mixed</span></span><br><span class="line"><span class="comment">     */</span></span><br><span class="line">    <span class="keyword">private</span> <span class="function"><span class="keyword">function</span> <span class="title">createConsumerProcess</span><span class="params">($index = null)</span></span></span><br><span class="line"><span class="function">    </span>&#123;</span><br><span class="line">        <span class="keyword">if</span> (is_null($index)) &#123;</span><br><span class="line">            $index = <span class="keyword">$this</span>-&gt;newIndex;</span><br><span class="line">        &#125;</span><br><span class="line">        $self = <span class="keyword">$this</span>;</span><br><span class="line">        $process = <span class="keyword">new</span> \swoole_process(<span class="function"><span class="keyword">function</span> <span class="params">(\swoole_process $worker)</span> <span class="title">use</span> <span class="params">($self, $index)</span> </span>&#123;</span><br><span class="line">            swoole_set_process_name(sprintf($self-&gt;processName, <span class="string">"consumer"</span> . $index));</span><br><span class="line">            <span class="keyword">while</span> (<span class="number">1</span>) &#123;</span><br><span class="line">                $self-&gt;checkMasterPid($worker);</span><br><span class="line">                $recv = $worker-&gt;pop();</span><br><span class="line">                usleep(<span class="number">1000</span>);</span><br><span class="line">                <span class="keyword">if</span> ($recv == <span class="keyword">false</span>) &#123;</span><br><span class="line">                    <span class="comment">//队列为空，继续轮询等待pop</span></span><br><span class="line">                    <span class="keyword">continue</span>;</span><br><span class="line">                &#125;</span><br><span class="line">                <span class="keyword">if</span> ($recv == <span class="string">'exit'</span>) &#123;</span><br><span class="line">                    <span class="comment">// 传递消息生产结束给其他消费者</span></span><br><span class="line">                    $worker-&gt;push(<span class="string">'exit'</span>);</span><br><span class="line">                    <span class="keyword">echo</span> <span class="string">'php-ps:'</span> . $index . <span class="string">'receive exit so it exit'</span> . PHP_EOL;</span><br><span class="line">                    <span class="comment">//退出进程，今日任务结束</span></span><br><span class="line">                    $worker-&gt;exit(<span class="number">0</span>);</span><br><span class="line">                    <span class="keyword">break</span>;</span><br><span class="line">                &#125;</span><br><span class="line">                $data = json_decode($recv, <span class="keyword">true</span>);</span><br><span class="line">                <span class="comment">//具体业务流程、请求api存储数据等</span></span><br><span class="line">                $game = <span class="keyword">new</span> GameInfo();</span><br><span class="line">                $game-&gt;setGameUid($data[<span class="string">'game_userid'</span>]);</span><br><span class="line">                $game-&gt;setGameType($data[<span class="string">'area'</span>]);</span><br><span class="line">                $game-&gt;getGameData();</span><br><span class="line">                <span class="keyword">if</span> (!$game-&gt;saveData()) &#123;</span><br><span class="line">                    <span class="comment">//接口数据出现错误</span></span><br><span class="line"><span class="comment">//                    Logs::getInstance()-&gt;error("api error, data:" . $recv);</span></span><br><span class="line">                    <span class="comment">//将数据从新添加到队列当中</span></span><br><span class="line">                    $worker-&gt;push($recv);</span><br><span class="line">                &#125;</span><br><span class="line">            &#125;</span><br><span class="line">        &#125;, <span class="keyword">false</span>, <span class="keyword">false</span>, <span class="keyword">true</span>);</span><br><span class="line">        $customMsgKey = <span class="number">1</span>;</span><br><span class="line">        $mod = <span class="number">2</span> | \swoole_process::IPC_NOWAIT;<span class="comment">//这里设置消息队列为非阻塞模式</span></span><br><span class="line">        $process-&gt;useQueue($customMsgKey, $mod);</span><br><span class="line">        $pid = $process-&gt;start();</span><br><span class="line">        <span class="keyword">$this</span>-&gt;works[$pid] = $process;</span><br><span class="line">        <span class="keyword">return</span> $pid;</span><br><span class="line">    &#125;</span><br></pre></td></tr></table></figure>
<p>以上只是一个比较笼统的多进程使用，我比较想吐槽的是swoole在布道者不多、社区、相关资源匮乏的环境下，官方文档依旧对于小白十分不友好，确实很难推广，从而成为一种恶性循环。<br>另一方面我觉得swoole也并非是高级phper的救命稻草，因而导致了它的不温不火。</p>
<p>以上也算是我的小白之言，欢迎讨论指正。</p>

      
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              <div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-6"><a class="nav-link" href="#使用swoole-process多进程"><span class="nav-number">1.</span> <span class="nav-text">使用swoole_process多进程</span></a></li></ol></div>
            

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